Replacing The Motor Assembly; Replacing The Gears - Titan 750e Series Instrucciones De Uso

Repairs at the unit
18. Slide the top of the piston (3) into the T-slot (10) on the slider
assembly (4).
19. Position the pump manifold (2) underneath the gear unit
housing and push up until it rests against the gear unit
housing.
20. Attach pump manifold (2) to the gear unit housing. Ensure
that the pressure sensor does not damage the pressure sensor
seal (10).
21. Screw pump manifold (2) tightly to gear unit housing.
22. Lubricate O-ring (Fig. 10, Item 6) between pump manifold (2)
and inlet valve housing with machine grease. Screw inlet valve
housing to the pump manifold.
23. Stand units - Push connection bend of suction hose into the
inlet valve housing (Fig. 10, Item 1) and secure with retaining
clip. Screw on return hose and clamp to suction hose.
Cart units - Thread the siphon tube into the inlet valve and
tighten securely. Make sure to wrap the threads on the down
tube with PTFE tape before assembly. Replace the return hose
into the hose clip on the siphon tube.
24. Install front cover.
11.4

Replacing the motor assembly

Electrostatic discharge (ESD) potential could cause
damage to electronic control. use Titan ESD wrist
strap P/N 0507958 or equivalent when working on
electronic control with electronic cover removed.
1. Open the relief valve, valve position PRIME (k circulation),
switch the unit OFF, and unplug the power cord.
2. Remove the four motor cover screws (Fig. 15, Item 1). Remove
the motor cover (2).
3. Slide the electronic cover (3) off of the electronic control
assembly (4) on the motor.
4. Remove the four heat sink assembly screws (5). Pull back the
heat sink assembly (6) to access and disconnect the two wires
coming from the motor.
5. At the electronic control assembly, disconnect the wire
coming from the potentiometer and the wire coming from the
transducer.
6. Loosen and remove the four motor (7) mounting screws.
7. Pull the motor (8) out of the gear box housing.
i
If the motor will not dislodge from the pump
housing:
• Remove the front cover plate.
• Using a rubber mallet, carefully tap on the
front of the motor crankshaft that extends
through the slider assembly.
8. With the motor removed, inspect the gears in the gear box
housing for damage or excessive wear. Replace the gears, if
necessary.
9. Install the new motor into the gear box housing.
10. Secure the motor with the four motor mounting screws.
11. Reconnect the wires to the electronic control assembly (refer
to the electrical schematic in section 11.7 of this manual).
12. Connect one of the motor wires to the power cord and the
other to the ON/OFF switch.
13. Position the electronic cover over the electronic control
assembly.
14. Position the heat sink assembly on the gear box housing and
secure in position with the four heat sink assembly mounting
screws
15. Slide the motor cover over the motor. Secure the motor cover
with the four motor cover screws.
GB
5
6
11.5

Replacing the Gears

Electrostatic discharge (ESD) potential could cause
damage to electronic control. use Titan ESD wrist
strap P/N 0507958 or equivalent when working on
electronic control with electronic cover removed.
1. Open the relief valve, valve position PRIME (k circulation),
switch the unit OFF, and unplug the power cord.
2. Loosen and remove the four motor cover screws (Fig. 16. 1).
Remove the motor cover (2).
3. Slide the electronic cover (3) off of the electronic control
assembly (4) on the motor.
4. Remove the four heat sink assembly screws (5). Pull back the
heat sink assembly (6) to access and disconnect the two wires
coming from the motor.
5. At the electronic control assembly, disconnect the wire
coming from the potentiometer and the wire coming from the
transducer.
6. Loosen and remove the four motor mounting screws.
7. Pull the motor (8) out of the gear box housing.
i
If the motor will not dislodge from the pump
housing:
• Remove the front cover plate.
• Using a rubber mallet, carefully tap on the
front of the motor crankshaft that extends
through the slider assembly.
8. Inspect the rotor gear (9) on the end of the motor for damage
or excessive wear. If this gear is completely worn out, replace
the motor.
9. Remove and inspect the 2nd stage gear assembly (10) for
damage or excessive wear. Replace, if necessary.
10. Remove and inspect the crankshaft/gear assembly (11) for
damage or excessive wear. If damaged or worn, replace the
crankshaft/gear assembly.
11. Reassemble the pump by reversing the above steps. During
reassembly, make sure the thrust washer (12) is in place.
16
2
1
7
3
4
8
Performance Series 750e